EP4258964A1

EP4258964A1 - Suction device with at least one receiving area for a battery

Info

Publication number: EP4258964A1
Application number: EP21810554.2A
Authority: EP
Inventors: Jürgen FRANK
Original assignee: Alfred Kaercher SE and Co KG
Current assignee: Alfred Kaercher SE and Co KG
Priority date: 2020-12-08
Filing date: 2021-11-09
Publication date: 2023-10-18
Also published as: DE102020132594A1; WO2022122280A1

Abstract

The invention relates to a suction device, comprising a device body (12), a fan device (72) for generating a suction flow, a battery device (120) with at least one battery unit (122, 124) for providing electric energy, and at least one receiving area (126, 128) for a battery unit, said receiving area being arranged on the device body (12), comprising at least the following: a control panel (112) which is arranged on a lateral face (48) of the device body (12) and a suction connection (106) which is arranged on a lateral face (48) of the device body (12), wherein at least one of the following is provided: the at least one receiving area (126, 128) is arranged on the device body (12) relative to the lateral face (48) such that the battery unit (122, 124) which is paired with the at least one receiving area (126, 128) can be brought from the lateral face (48) into the at least one receiving area (126, 128); and the at least one receiving area (126, 128) is arranged on the device body (12) relative to the lateral face (48) such that a charge state display (160) can be read by a user from the lateral face (48), said charge state display (160) being arranged on the battery unit (122, 124) or on the at least one receiving area (126, 128).

Description

Suction device with at least one holder for a battery

The invention relates to a suction device, comprising a device body, a fan device for generating a suction flow, a battery device with at least one battery unit for providing electrical energy, at least one holder for a battery unit, which is arranged on the device body, and with at least one of the following: one an operation panel arranged on a lateral side of the machine body, a suction port arranged on a lateral side of the machine body.

DE 10 2016 112 420 A1 discloses a backpack type dust collector with a housing containing a motor and a dust collecting part that collects dust when the motor is driven, with a battery holding part provided on the housing so that the battery holding part capable of holding a power tool battery of slide mounting type, and shoulder straps to be put on both shoulders of the user for carrying the case on the back of a user.

DE 20 2007 008 998 U1 discloses a suction nozzle for a vacuum cleaner.

US Pat. No. 6,448,732 B1 discloses a vacuum cleaner that is operated with electrical power provided either by a battery or via an AC connection.

WO 2012/107595 A1 discloses a vacuum cleaner comprising a suction inlet, a dirt collection container, a filter device, a suction line, a suction unit, the dirt collection container being in flow connection with the suction unit via the filter device and the suction line, and the filter device being subjected to negative pressure by the suction unit, and an external air valve device, the filter device being able to be charged with external air on the clean side via the external air valve device and the external air valve device for cleaning the filter device can be brought from a closed valve position into an open valve position and back again from the open valve position into a closed valve position. A battery device is provided to supply energy to the external air valve device.

WO 2012/107103 A1 discloses a method for cleaning a filter of a vacuum cleaner.

WO 2015/139751 A1 also discloses a method for cleaning a filter of a vacuum cleaner.

EP 3 162 267 A1 discloses a vacuum cleaner.

CN 209996199 U, JP 2018 186931 A, CN 107198495 A, CN 206293491 U, CN 206285056 U and CN 106175601 A also disclose teats.

WO 2014/119160 A1 discloses a vacuum cleaner with a battery device.

WO 00/36969 A1 discloses a vacuum cleaner with a battery pack.

US 2005/0155177 A1 discloses a vacuum cleaner in which a battery pack is arranged adjacent to the bottom of a tank.

JP 1-209038 discloses a vacuum cleaner. EM 006934220-0001 discloses a cordless vacuum cleaner.

The object of the invention is to provide a suction device of the type mentioned at the outset that can be operated in a simple manner.

This object is achieved according to the invention with the suction device mentioned at the outset in that at least one of the following is provided: the at least one receptacle is arranged on the device body with respect to the transverse side in such a way that the battery unit assigned to the at least one receptacle can be inserted from the transverse side into the at least one recording can be brought; the at least one receptacle is arranged on the device body with respect to the transverse side in such a way that a charge status display can be read by an operator from the transverse side, the charge status display being arranged on the battery unit or on the at least one receptacle being arranged.

For an operator, this results in simple operability. If he is in front of the short side (for example kneeling or standing), then he can insert a battery unit on the device body or remove it from the device body from this position. He has access to the control panel and the suction connection. If a suction hose is fixed to the suction connection, it has access to a suction nozzle, for example, which is on the suction hose.

An operator can then also pull the suction device towards him via the suction hose and is then in front of the transverse side.

Alternatively or additionally, an operator has the charge status display in his field of vision in front of the short side. He can then see the state of charge of the corresponding battery unit. For these processes or activities, the operator does not have to reposition himself to the suction device.

Furthermore, an electrical contact device can be positioned in a protected manner on the device body in a structurally simple manner, in particular if it is arranged in a chamber. In the solution according to the invention, an opening of the chamber is open to the transverse side and the ingress of dirt and liquid is more difficult compared to the case when fluid can reach the electrical contact device directly from above (relative to the direction of gravity).

It is favorable if at least one of the following is provided: a battery unit can be releasably positioned on the associated at least one receptacle in an insertion direction and can be removed from the at least one receptacle in a direction opposite to the insertion direction; the at least one receptacle comprises a fixing device for the associated battery unit; an electrical contact device is assigned to the at least one receptacle; the at least one receptacle includes a track for the associated battery pack; a battery unit can be accommodated by the at least one receptacle, which is a balancing weight for an electrically active battery unit and corresponds in weight to the electrically active battery unit; the control panel and the suction connection are located on the same transversal side.

This allows a (rechargeable) battery unit to be inserted or detached from the device body in a simple manner. The corresponding battery unit can be fixed and, as it were, locked by the device body. In a corresponding fixing position, an electrical contact with the electrical contact device is in particular then also established.

By providing a guide track, the associated battery unit can be positioned on the corresponding receptacle or removed from it in a simple manner.

If a receptacle can also hold a counterweight, then a high level of stability can be achieved for the suction device if, for example, only one electrically effective battery unit is used.

The provision of the control panel and the suction connection on the same transverse side results in simplified operability.

It is favorable if the at least one receptacle is open to the transverse side and/or to a longitudinal side to which the transverse side is oriented transversely. As a result, a battery unit can be inserted or removed in a simple manner via the transverse side. There is a field of view from the transverse side of the charge status display. With an open long side, effective cooling of a battery unit can be achieved, for example, or heat accumulation can be prevented.

In a structurally favorable embodiment, the at least one receptacle comprises a chamber which is closed, in particular, except for an insertion opening. As a result, a receiving space that can be closed in a dust-tight manner can be provided. In one embodiment, a movable cover for the insertion opening is arranged on the chamber. The insertion opening can be closed by this cover. Provision is made in particular for the cover to be opened automatically by inserting a battery unit.

It is favorable if at least one of the following is provided: a battery unit arranged on the at least one receptacle does not protrude beyond the transverse side; a battery unit positioned on the at least one receptacle is flush with the lateral side or positioned set back on the device body from the lateral side; a battery unit positioned on the at least one receptacle does not protrude beyond a longitudinal side of the device body, the longitudinal side being oriented transversely to the transverse side; a battery unit positioned on the at least one receptacle lies flush with a long side of the device body or is set back from the long side, with the long side being oriented transversely to the short side.

The battery pack or battery packs, which are properly positioned on the device body, are flush with or recessed from outer shells of the device body. This avoids "protruding parts". It is possible to avoid an operator getting caught on a battery unit or the suction device hitting an object via the battery unit. In an advantageous embodiment, the device body has a recess or free space which is assigned to the at least one receptacle, the free space or recess being open to the transverse side, and the at least one receptacle adjoining the assigned free space or the assigned recess connects, in particular the at least one receptacle connects to the free space or the recess in a direction transverse to the transverse side and in particular in an insertion direction for the battery unit. The recess or the free space makes it possible in a simple manner to position the battery unit on the device body flush or set back with respect to an outer contour of the device body. The recess or space extends downward from an outer shell of the device body. It is also possible that a properly positioned battery unit on the associated receptacle is partially arranged in the recess or in the free space and does not protrude beyond the outer envelope of the device body. This allows for easy insertion and removal of a battery pack to and from the associated receptacle.

It is particularly advantageous if at least one of the following is provided: the free space or recess is in front of the at least one associated receptacle; the free space or recess is delimited downwards by a floor and in particular by a flat floor on the device body; the space or recess is bounded on a first side by a center block of the device body; the space is open to a second side lying on a longitudinal side of the implement body, the longitudinal side being oriented transversely to the transverse side; a battery unit, which is positioned on the at least one receptacle, is positioned at least with a partial area in the free space or in the recess; a battery unit is provided with a handle device, wherein when the battery unit is positioned on the at least one receptacle, the handle device is positioned in the free space or the recess and is accessible to an operator in particular via the free space or the recess; the handle device is arranged on a longitudinal side or top side of the battery unit, which is oriented transversely to the transverse side of the device body when the battery unit is positioned on the at least one receptacle and in particular points outwards; A handle device is arranged on a first long side and on an opposite second long side of the battery unit, and in particular the battery unit is mirror-symmetrical with respect to its external shape.

When the battery pack is at least partially located in the space or recess, it can then be easily grasped by an operator. If a gripping device is appropriately arranged on the battery pack, then this gripping is facilitated. Accordingly, a battery unit can then be pulled out of or inserted into the respective associated receptacle. If the battery unit has a gripping device on each of the opposite longitudinal sides, then the corresponding (mirrored) symmetrical design makes it possible to insert it into different receptacles on the device body. Even if receptacles are arranged on opposite sides of the body of the device, one type of battery pack will suffice.

In a structurally favorable embodiment, at least one first receptacle and one second receptacle and in particular exactly one first receptacle and exactly one second receptacle are provided. In this way (at least) two electrically effective battery units can be arranged on the device body. This results in a correspondingly long service life.

It is favorable if at least one of the following is provided: the first receptacle and the second receptacle are arranged symmetrically and in particular mirror-symmetrically to a geometric center plane of the device body on the device body, or are arranged on the center plane of the device body, with the center plane being transverse to the transverse side is oriented; the device body has a vertical axis which is oriented perpendicular to a standing plane of the suction device and the first receptacle and the second receptacle are arranged on the device body at the same height relative to the vertical axis; the first socket and the second socket are spaced apart in a direction transverse to a geometric center plane of the device body; the fan device is arranged at least with a partial area between the first receptacle and the second receptacle on the device body; a control device is arranged between the first socket and the second socket on the device body.

This results in a symmetrical design. In particular, a center of mass of a battery device with a plurality of battery units can be arranged on the geometric center plane. In particular, a center of mass of the suction device can be "positioned" on the geometric center plane. This results in a high level of stability of the suction device. The suction device can also be easily picked up and the like.

A compact structure is obtained when the operation panel is arranged between the first seat and the second seat on the body of the device.

For the same reason, it is favorable if the suction connection is arranged between the first receptacle and the second receptacle on the device body. As a result, the suction device can be made compact with relatively small external dimensions.

In one embodiment, the first seat and the second seat are arranged on a suction head of the device body, in particular with at least one of the following: the operation panel is arranged on the suction head; the suction connection is arranged on the suction head or on a suction material container.

A suction device with compact dimensions and high stability can thus be formed. In a structurally favorable embodiment, a central block is arranged on the device body, on which the operating panel is positioned, and a receptacle is arranged on the device body on both sides of the central block. This results in a compact design. A high degree of symmetry can be achieved, so that in particular the suction device with the battery device fixed to it has a high degree of stability.

It is favorable if at least one of the following is provided: the suction connection is seated on the central block; the center block has an outer side forming part of the transverse side; the center block includes a web which is positioned over the receptacles relative to a height axis of the device body; the center block is I-shaped or T-shaped; the center block sits on a suction head of the device body; a control device is arranged on the central block; the center block is mirror-symmetrical to a geometric center plane of the device body; a movable lid for an accommodation space of the apparatus body, in which a filter cleaning device for a filter device and/or the filter device is arranged, is supported on the center block; a carrying handle is arranged on the movable cover; the at least one receptacle extends into an area below the lid; the at least one receptacle is positioned on the device body at least in a partial area to the side of the blower device.

The result is an optimized use of space on the device body and in particular on the suction head. Accordingly, the suction device can be made compact. The result is a high level of stability.

Provision can be made for the at least one receptacle to be arranged between the suction connection and the control panel in relation to a vertical axis of the device body. As a result, for example, the suction head does not have to be significantly modified in order to position a battery device.

It is then in particular provided that the control panel is arranged on a suction head of the device body and the suction connection is arranged on the suction material container of the device body. The at least one receptacle is then arranged on the suction material container, or is arranged on the suction head container, or is arranged on an additional part (an intermediate ring) which is located between the suction head and the suction material container.

Accordingly, it is provided in one embodiment that the at least one receptacle is arranged on an intermediate ring, which is arranged between the suction material container and the suction head, in particular with at least one of the following: the intermediate ring can be detached from the suction material container; the intermediate ring is detachable from the suction head; A receiving space is arranged on the intermediate ring, on which a plurality of receptacles are seated, with the receiving space in particular being designed to accommodate a plurality of battery units.

The intermediate ring is essentially a component for positioning a battery device on the suction device. Accordingly, a “large” number of battery units can be positioned on the intermediate ring. In principle, one battery unit, but also three or more battery units, for example, can be positioned on the suction device via the intermediate ring.

It is favorable if a filter cleaning device for a filter device and/or the filter device is arranged on a geometric center plane of the device body, which lies between a first receptacle and a second receptacle. This allows a tilting moment to be minimized. The result is a high level of stability for the suction device. The filter device can be cleaned effectively via the filter cleaning device. This results in easy operability for an operator, since the suction device includes means for filter cleaning.

It is favorable if the suction device has a standing plane and the device body has a height axis which is oriented perpendicularly to the standing plane, with the at least one receptacle being assigned an insertion direction for a corresponding battery unit, with at least one of the following: the at least one receptacle is arranged so that the insertion direction is oriented transversely to the height axis; the at least one receptacle is arranged in such a way that the insertion direction is parallel or at an acute angle to the standing plane; the direction of insertion is oriented transversely to the transverse side; the insertion direction is oriented transversely and in particular perpendicularly to a wheel axis of a wheel device, the wheel device being arranged on the device body; the insertion direction is oriented parallel to a geometric center plane of the device body; the direction of insertion is parallel or at an acute angle to a direction of insertion of a suction hose into the suction connection.

This results in easy operability. In particular, a battery unit can be inserted into or removed from the device body from the transverse side.

The direction of insertion is preferably perpendicular to the height axis or parallel to the standing plane.

In an advantageous alternative embodiment, an acute angle of the insertion direction to the standing plane is in the range between 30° and 60° and in particular in the range between 40° and 50°. In a specific embodiment, this angle is approximately 45°. When inserting a battery unit in the corresponding receptacle, a force component parallel to the standing plane is kept low. The force component parallel to the standing plane can lead to a displacement of the suction device on a surface, which is undesirable.

It is then particularly advantageous if the at least one receptacle has an insertion direction for a battery unit, which is at an acute angle to a displacement direction of the suction device on a substrate. This allows a force component when inserting a battery unit to the at least one receptacle in the direction of insertion, before is parallel to the displacement direction. This force component parallel to the displacement direction can lead to a displacement of the suction device on a base and is fundamentally undesirable.

In particular, the acute angle is in the range between 30° and 60° and preferably in the range between 40° and 50°. In a specific embodiment, it is approximately 45°.

In an advantageous embodiment, the device body is supported on the ground via a wheel device with a wheel axle, and the direction of displacement is oriented perpendicularly to the wheel axle. This also results in a high level of stability, with the suction device being mobile on the ground.

It is advantageous if the transverse side with the control panel and/or with the suction connection is a first transverse side and the device body has a second transverse side which is spaced apart from the first transverse side, and a wheel device is arranged on the device body with at least one of the following: the wheel means is positioned closer to the second transverse side than the first transverse side on the apparatus body; a wheel of the wheel means is arranged in front of a longitudinal side of the apparatus body, the longitudinal side being between the first transverse side and the second transverse side; a connecting line between a receptacle and a wheel, with the receptacle and the wheel being associated with one longitudinal side, lies at an acute angle to a vertical axis of the device body. This results in the suction device being able to be driven. The suction device has a high level of stability. It has a high level of security against tipping, both parallel to the wheel axle and perpendicular to the wheel axle.

A compact construction of the suction device and in particular a suction head results if at least one of the following is provided: an underside of the at least one receptacle is at the same height as the suction connection or below the suction connection in relation to a vertical axis of the device body; an upper side of the at least one receptacle is at the same height as the control panel or above the control panel in relation to a height axis of the device body.

As a result, the at least one receptacle is integrated in a space-saving manner, in particular in a suction head.

It is favorable if a contour profile is a line between the first receptacle and the second receptacle, a line between the second receptacle and the suction connection, and a line between the suction connection and the first receptacle is a straight line or a triangle and is in particular an equilateral triangle . A compact construction of the suction device is thereby achieved.

For the same reason, it is favorable if a contour of a line between the first receptacle and the second receptacle, a line between the second receptacle and the control panel, and a line between the control panel and the first receptacle is a straight line or a triangle and in particular a is an equilateral triangle. The following description of preferred embodiments of the invention, in conjunction with the drawings, serves to explain the invention in more detail. Show it:

FIG. 1 shows a perspective view of a first exemplary embodiment of a suction device;

FIG. 2 shows a front view of the suction device according to FIG. 1 in the direction A as a view of a transverse side;

Figure 3 is a sectional view of the suction device according to Figure 1 in a

plane which is indicated in Figure 1 with B;

Figure 4 is a sectional view of the suction device according to Figure 1 along the

line 4-4 of Figure 3;

Figure 5 is a sectional view of the suction device according to Figure 1 along the

line 5-5 of Figure 3;

FIG. 6 shows a perspective representation of a second exemplary embodiment of a suction device according to the invention with closed covers on a respective receptacle;

FIG. 7 shows a sectional view of the suction device according to FIG. 6;

Figure 8 shows the same view as Figure 7, during the introduction of a

battery pack into an associated receptacle;

Figure 9 is a sectional view similar to Figure 7 when inserting

Battery unit according to Figure 8;

Figure 10 is a perspective view of a third embodiment of a suction device according to the invention with a first receptacle and a second receptacle, wherein a battery unit is inserted on the first receptacle and a lid is closed on the second receptacle;

FIG. 11 shows a partial sectional side view of the suction device according to FIG. 10;

FIG. 12 shows the same view as FIG. 11 when inserting a battery unit;

FIG. 13 shows a perspective representation of a fourth exemplary embodiment of a suction device according to the invention;

FIG. 14 shows a sectional view of a fifth exemplary embodiment of a suction device according to the invention;

Figure 15 is a sectional view of the suction device of Figure 14 taken along line 15-15; and

FIG. 16 shows a perspective view of a sixth exemplary embodiment of a suction device.

A first exemplary embodiment of a suction device according to the invention, which is shown in FIGS. 1 to 5 and is denoted by 10, is a stand-alone suction device.

The suction device 10 comprises a device body 12. The device body 12 in turn has a suction material container 14 and a suction head 16 which is detachably seated on the suction material container 14.

The suction material container 14 has a bottom 18 on which a peripheral wall 20 is arranged. An interior space 22 is formed between the bottom 18 and the wall 20, which is used to accommodate suction material. That Suction material can be received directly in the interior space 22, or a filter bag can be positioned in the interior space 22 for receiving suction material.

On the device body 12 designated as a whole with 24 driving device is arranged.

A frame 26 is provided for this purpose, on which the driving device 24 is seated. This frame 26 has a receptacle 28 in which the device body 12 with the suction material container 14 is detachably positioned. In principle, it is also possible for the device body 12 with the suction material container 14 to be placed directly on a base 29 .

The driving device 24 includes a wheel device 30 which is seated on the frame 26 . The wheel device 30 is a rear wheel device. It comprises a right (rear) wheel 32 and a left (rear) wheel 34. The right wheel 32 and the left wheel 34 can be rotated about a common wheel axle 36. When the suction device 10 is set up correctly on a flat surface 29, this wheel axle 36 is parallel to this surface 29.

The device body 12 has a first longitudinal side 38 and a second longitudinal side 40 opposite this. The wheel axle 36 is in each case oriented transversely to the first longitudinal side 38 and the second longitudinal side 40 .

The right wheel 32 is in front of the first longitudinal side 38 and the left wheel 34 is in front of the second longitudinal side 40. In particular, the right wheel 32 and the left wheel 34 are each laterally in front of the wall 20 of the vacuum container 14 when this is in the frame 26 is used.

The driving device 24 also includes a roller device 42 . In the exemplary embodiment shown, the roller device 42 has a first steering roller 44 and a second steering roller 46 . The first caster wheel 44 and the second caster wheel 46 are positioned on the frame 26 such that they are positioned below the vacuum container 14 when the vacuum container 14 is seated on the frame 26 .

The device body 12 has a first transverse side 48 and spaced from this and opposite a second transverse side 50 . The first transverse side 48 and the second transverse side 50 are each arranged transversely to the first longitudinal side 38 and the second longitudinal side 40, respectively.

The roller device 42, when the device body 12 is positioned on the frame 26, is arranged in a front region of the device body 12; the roller assembly 42 is closer to the first transverse side 48 than to the second transverse side 50.

The wheel device 30 is positioned at a rear portion of the device body 12 . It is closer to the second transverse side 50 than to the first transverse side 48.

In one exemplary embodiment, a receptacle 52 is arranged on the frame 26, on which a suction nozzle or the like can be fixed.

The suction material container 14 is barrel-shaped over its wall 20 and the bottom 18 . It is, for example, cylindrical or cuboid (in particular with rounded edges).

The suction head 16 of the device body 12 can be releasably fixed to the suction material container 14 , for example via a locking flap device 54 .

When the suction head 16 has been removed from the suction material container 14 , access to the interior space 22 is then possible on the suction material container 14 from an upper side which faces away from the base 18 . Suction material can then be emptied from the interior space 22 or a filter bag can be removed from the interior space 22 . The suction head 16 forms a cover for the suction material container 14.

The suction device 10 has a standing level 56 above the driving device 24 . The standing plane 56 is defined by the wheels 32 and the castors 44, 46. The suction device 10 is supported on these when it is set up on the base 29.

If the base 29 is a plane, then the standing plane 56 coincides with this plane.

In an alternative exemplary embodiment, it is provided that the suction material container 14 can be placed stably on the base 29 via its base 18 . The corresponding standing level is then formed via an underside of this floor 18 .

The device body 12 has a height axis 58 (compare, for example, Figures 2 and 3). This height axis 58 is oriented transversely and, in particular, perpendicularly to the standing plane 56 . The vertical axis 58 is oriented transversely and in particular perpendicularly to the wheel axis 36 .

The suction head 16 includes a suction head body 60. This suction head body 60 is designed as a housing. It has a first transverse side of the suction head 62 and a second transverse side of the suction head 64 lying opposite it.

A first longitudinal side 66 and a second longitudinal side 68 of the suction head extend between the first transverse side of the suction head 62 and the second transverse side of the suction head.

The first transverse side 62 of the suction head, together with the associated area of the wall 20 of the suction head 16, forms the first transverse side 48 of the device body 12. The second transverse side 64 of the suction head, together with the associated area of the wall 20, forms the second transverse side 50 of the device body 12. The first suction head - The longitudinal side 66 forms the first longitudinal side 38 of the device body 12 with the associated area of the wall 20. The second longitudinal side 68 of the suction head forms the second longitudinal side 40 of the device body 12 with the associated wall area of the wall 20.

A fan device 72 is arranged on the suction head 16 in a corresponding receiving space 70 of the suction head body. The blower device 72 includes (at least) one impeller 74. This impeller 74 is mounted such that it can rotate about an axis of rotation 76. This axis of rotation 76 is transverse and in particular perpendicular to the wheel axis 36. The axis of rotation 76 is oriented parallel or at a small acute angle (in particular less than 30°) to the vertical axis 58.

In principle, it is also possible for the axis of rotation 76 to be oriented transversely and in particular approximately perpendicularly to the vertical axis 58 in the case of an impeller 74 arranged “lying” (not shown in the drawings).

The blower device 72 also has a blower motor 78 . The fan motor 78 is an electric motor. It comprises a shaft 80 on which the impeller 74 is seated in a rotationally fixed manner. An axis of rotation of this shaft 80 coincides with the axis of rotation 76 of the impeller 74 .

The fan device 72 generates a suction flow.

The suction device 10 has a filter device 82 . The filter device 82 is held on a filter holder 84 . The filter device 82 comprises, for example, a flat pleated filter or a candle filter.

In the embodiment shown, the filter holder 84 and thus the filter device 82 sits on the suction head 16; if the suction head 16 is removed from the suction material container 14, then the filter device 82 is also removed. In principle, it is also possible for the filter device 82 to be held on the suction material container 14 . Accordingly, in this embodiment, the filter holder is then seated on the suction material container 14 (not shown in the drawings).

Another receiving space 86 is formed in the suction head body 60 . A filter cleaning device 88 is arranged in the receiving space 86 . The filter cleaning device 88 is positioned relative to the filter device 82 in such a way that the filter device 82 can be cleaned.

Dust accumulates on the filter device 82 during the operation of the suction device 10 . This increases the flow resistance for the flow through the filter device 82. The filter cleaning device 88 ensures cleaning by mechanical action on the filter device 82.

The filter cleaning can be triggered manually or it can be carried out automatically. For example, a needs-based filter cleaning is carried out by the filter cleaning device 88 . This is initiated automatically when corresponding measurements recognize a need for this.

An example of a method for cleaning a filter, which is appropriate, is described in WO 2015/139751 A1, with express reference being made to this document in its entirety.

In one embodiment, the filter cleaning device 88 is designed as an external air valve device 90 . The filter device 82 can be acted upon by external air via this external air valve device in order to loosen adhering solid particles and in doing so to a certain extent blow them off. For this purpose, an external air valve 92 is arranged on the suction head 16 in the receiving space 86 . It comprises a valve holder which is arranged stationarily in the suction head 16 and which forms a valve seat for a movable valve body in the form of a valve plate. The valve disk is subjected to a closing force in the direction of the valve holder by means of a closing spring. The closing spring is clamped between a plate-like filter holder, which has a plurality of flow passages and is arranged stationarily in the suction head 16, and the valve disk. In addition to the closing spring, the filter holder carries a resilient stop element in the form of a stop spring. In particular, this has (preferably the same as the closing spring) a linear characteristic. It is designed, for example, as a helical spring. In contrast to the closing spring, the stop spring is not under pretension when the valve disk is in the closed position. Only when the valve disk lifts off the valve seat of the valve holder does the stop spring come to rest on the underside of the valve disk and is slightly compressed when the valve disk moves further. As a result, it exerts an increasing restoring force on the valve disk and accelerates the movement of the valve disk, starting from a closed valve position via an open valve position back to the closed valve position. In the closed valve position, the valve disk assumes a distance from the valve holder, which forms the valve seat. The valve holder has a large number of through-openings, the mouth areas of which are closed by the valve disk when the latter assumes its closed valve position. At the level of the valve holder, the suction head 16 has a lateral opening. External air can flow into the passage opening in the valve holder via the side opening. If the valve disk assumes its open valve position spaced apart from the valve holder, the lateral opening is in flow communication with a suction line via the through-opening in the valve holder and external air can act on a clean side 94 of the filter device 82 . The clean side 94 faces away from the suction material container 14 . If the valve disk assumes its closed valve position, the flow connection between the lateral opening and the suction line is interrupted.

The valve holder carries an electromagnet in a central area. In the circumferential direction, the electromagnet is surrounded by an annular space, into which a guide sleeve formed on the upper side of the valve disk dips. The guide sleeve accommodates a magnetizable element, for example in the form of an iron plate, which rests against a free front edge of the electromagnet when the valve disk is in the closed position and forms a closed magnetic circuit in combination with the electromagnet.

An (electronic) control device 96 is arranged in the suction head 16 .

The electromagnet is electrically connected to the control device 96 via a power supply line. The control device 96 applies a supply current to the electromagnet during normal suction operation of the suction device 10 . Due to the magnetic field that forms, the valve disk is reliably held in its closed position. The holding force of the electromagnet is supported by the spring force of the closing spring.

If the power supply to the electromagnet is interrupted by the control device 96, the magnetic holding force acting on the valve disk is eliminated and the valve disk is released due to the pressure difference acting on it, which results from the external pressure of the external air present in the area of the valve holder and the internal pressure within the suction line , lifted off the valve seat against the action of the closing spring. External air can then suddenly flow through the passage opening in the valve holder into the suction line and the filter device 82 is suddenly exposed to external air on its clean side 94. serves. This leads to mechanical vibration of the filter device 82. In addition, the filter device 82 is flowed through by external air in the countercurrent direction, ie counter to the direction of flow 98 prevailing during normal suction operation. This results in effective cleaning of the filter device 82 by the filter cleaning device 88 .

With regard to the exemplary embodiment of a filter cleaning device 88 and in particular external air valve device 90, reference is made to

WO 2015/139751 A1, WO 2012/107103 A1, WO 2012/107595 A1 or the international application PCT/EP2020/066794 of June 17, 2020, which is not a prior publication. Express reference is made to these documents.

The filter device 82 has a dirt side 100 which points into the interior 22 of the suction container 14 . It faces away from the clean side 94 which faces the filter cleaning device 88 .

In one embodiment, the filter cleaning device 88 and also the filter device 82 are positioned on the device body 12 closer to the second transverse side 50 than to the first transverse side 48 .

The fan device 72 is positioned on the suction head 16 closer to the first transverse side 48 than to the second transverse side 50 (compare Figure 3), or is located centrally between the first transverse side 48 and the second transverse side 50.

The device body 12 has a top 102. This top 102 lies against the suction head 16.

A movable cover 104 is arranged on the upper side 102 . This movable cover 104 closes the receiving space 86 at the top. The cover 104 can be removed (e.g. as a whole, or via a hinged availability or the like) to allow access to the filter cleaning device 88. If necessary, the filter device 82 can also be exchanged with the cover 104 open.

The suction device 10 has a suction connection 106 . A suction hose or a suction pipe can be connected to the suction connection 106 . The suction port 106 is arranged on the device body 12 .

In the exemplary embodiment 10 shown, the suction connection 106 is arranged on the suction head 16 . A pipe 108 (see Figure 3) leads from the suction connection 106 through the suction head 16 to the interior 22 of the suction container 14. A socket 110 is connected to the pipe 108, which protrudes into the interior 22 when the suction head 16 is on the suction material container 14 sits. A suction flow can be provided via the connecting piece 110 in order to then suck in suction material via the suction pipe or the suction hose, which is seated on the suction connection 106 .

The socket 110 can also be designed as a holder for a filter bag.

The suction connection 106 is arranged on the first transverse side 48 of the device body 12 . In the exemplary embodiment 10 shown, it is arranged on the first transverse side 62 of the suction head.

In principle, it is also possible for the suction connection to be seated on the suction material container 14 .

On the suction head 16, an operation panel 112 is arranged. The control panel 112 includes one or more controls for a user of the suction device 10.

In the exemplary embodiment 10 shown, the operating element is a rotary knob

114 provided. About this knob 114 can be the suction device 10 for activate or deactivate a suction mode. If necessary, a suction strength can be set.

In one embodiment, this rotary knob 114 can also be used to set whether automatic filter cleaning should be carried out by the filter cleaning device 88 .

The control panel 112 may also include additional or alternative elements, such as a separate on/off switch, or a switch to activate automatic filter cleaning, or a switch to (instantaneously) activate filter cleaning.

The operating panel 112 is connected with its active components in an electrical or signal-effective connection with the control device 96.

The control panel 112 is seated on the device body 12 on the suction head 16 and thereby on the first transverse side 48; the control panel 112 is arranged on the first transverse side 62 of the suction head.

In the embodiment shown, the control panel 112 and the suction port 106 are in close proximity. The operating panel 112 is arranged above the suction connection 106 in relation to the height axis 58 (in a direction away from the bottom 18 of the suction material container 14 ).

In particular, the control panel 112 and the suction port 106 are located at a center plane 116 of the device body 12 (compare Figures 1 and 2).

The suction port 106 and control panel 112 are respectively aligned at the midplane 116 or flush with one another. The center plane 116 is a geometric center plane of the device body 12. It lies in the middle between the first longitudinal side 38 and the second longitudinal side 40. It is oriented transversely to the first transverse side 48 and to the second transverse side 50.

The geometric center plane 116 of the device body 12 is oriented perpendicularly to the wheel axis 36 .

The axis of rotation 76 lies on the center plane 116 or is parallel to it.

In particular, the vertical axis 58 lies in the center plane 116.

The device body 12 and in particular also the suction device 10 is approximately mirror-symmetrical to the center plane 116 .

In particular, the driving device 24 is mirror-symmetrical to the center plane 116 .

In particular, a center of the filter cleaning device 88 with the external air valve 92 lies on the center plane 116.

The center of the filter cleaning device 88 is a center of mass of the filter cleaning device 88 and/or is a geometric center. In particular, the center of the filter cleaning device 88 lies on the external air valve 92. It is provided that the center of mass of the filter cleaning device 88 lies at least approximately on the central plane 116. At least approximately means that the center of mass of the filter cleaning device 88 lies exactly on the center plane 116 or is at a small distance from it, with this small distance being at most 10 cm and in particular at most 5 cm, so as not to generate any relevant tilting moment. In one embodiment, a center of fan device 72 also lies on median plane 116. The center of fan device 72 is a center of mass of fan device 72, and/or is a geometric center of fan device 72.

A center of mass 118 (Figures 2, 3) of the suction device 10 and in particular of the device body 12 lies on the central plane 116 or at a small distance from it (this small distance being at most 10 cm and in particular at most 5 cm).

A battery device 120 is provided to provide the electrical energy that is required to operate the suction device 10 and in particular to provide the electrical energy that is required for the blower motor 78, the control device 96 and the filter cleaning device 88. The battery device 120 comprises at least one rechargeable battery unit. In the embodiment shown, a first battery unit 122 and a second battery unit 124, each of which is a rechargeable battery (an accumulator), are provided.

In principle, it is also possible, as will be explained in more detail below, for a battery unit to be battery-free and to include a counterweight for an electrically active battery unit, this weight corresponding to the weight of an electrically active battery. The external dimensions of the battery unit with a counterweight are identical to those of an electrically active battery unit so that it can be inserted into a corresponding receptacle.

A receptacle is provided for each battery pack 122 . In the embodiment shown, a first receptacle 126 is provided for the first battery unit 122 and a second receptacle 128 is provided for the second battery unit 124 .

The first receptacle 126 and the second receptacle 128 are arranged on the device body 12 and thereby on the suction head 16 . A respective battery unit 122, 124 can be detachably inserted into a respective receptacle 126, 128.

The first receptacle 126 and the second receptacle 128 are each assigned an electrical contact device 130 (see FIG. 5), which is arranged fixedly on the suction head body 60 . Electrical contact device 130 is electrically connected to control device 96.

If a battery unit 122 or 124 is correctly ("electrically effective") inserted and fixed on the associated receptacle 126 or 128, then electrical contact is made with the electrical contact device 130, so that the corresponding battery unit 122 or 124 has the necessary electrical Energy to operate the suction device 10 can provide.

The suction head body 60 includes a central block 132. This central block 132 is arranged on the first transverse side 48. FIG. It sits in the middle between the first longitudinal side 38 and the second longitudinal side 40. It lies on the central plane 116.

On the center block 132, the suction port 106 is arranged and the operation panel 112 is arranged.

In one embodiment, the controller 96 is positioned on the center block 132 .

The center block 132 has an I-shape (see Figure 10), or in the embodiment of Figure 1, a T-shape.

The receptacles 126 and 128 are arranged laterally to the center block 132 on the suction head 16 . The center block 132 separates the first receptacle 126 from the second receptacle 128. In the case of the T-shaped design of the central block 132 in the suction device 10, it comprises a web 134 which projects over the first receptacle 126 and the second receptacle 128 in each case.

The control panel 112 with the rotary knob 114 is at least partially arranged on the web 134 .

When the cover 104 is closed (compare FIG. 1), it is supported in particular on the central block 132 and thereby on the web 134 .

In one embodiment, the center block 132 is inclined at an acute angle relative to the wall 20 at the first transverse side 48 . A corresponding angle 136 (compare FIG. 3) to the wall 100 is in the range of approximately 25°, for example.

The first receptacle 126 and the second receptacle 128 each include a track 138 for the corresponding battery pack 122 and 124, respectively.

The suction head 16 has a recess or cutout 140 for the first receptacle 126 and the second receptacle 128 . This is delimited by a floor 142 . The bottom 142 is the web 134 opposite. The cutout or recess 140 lies between the base 142 and the web 134 and extends in a direction toward the second transverse side 50 .

The guide track 138 is positioned on the floor 142 .

The guide track 138 is adapted to a corresponding counter-guide of the first battery unit 122 or the second battery unit 124.

A fixing device is assigned, which is designed, for example, as a snap-in connection. When a battery unit 122 or 124 has reached its end position on the corresponding receptacle 126 or 128 in the guideway 138 (where contact with the electrical Contact device 130 and thus an electrically effective positioning is present), then this end position is held, for example, by a releasable latching connection.

In one exemplary embodiment, the cutout or recess 140 is at least approximately (hollow) cuboid in shape.

The cutout or recess 140 is bounded by a wall 144 in the direction of the second transverse side 50 . The wall 144 is in particular a boundary wall of the receiving space 86 in which the filter device 82 is seated.

The cutout or recess 140 is bounded transversely to the wall 144 by a further wall 146 (FIGS. 4, 5). This wall 146 is at a distance from the center plane 116. It lies parallel to the center plane 116 or at a small acute angle (in particular less than 20°) to this center plane 116.

The wall 146 is in particular a wall which laterally delimits the receiving space 70 for the fan device 72 .

In the exemplary embodiment of the suction device 10 , the cutout or recess 140 is open laterally, ie towards the first longitudinal side 38 or towards the second longitudinal side 40 .

The recess or cutout 140 is open towards the first transverse side 48 .

The cutout or recess 140 is covered by the web 134 . It can be provided that an element 146, which adjoins the web 134 in the direction of the second transverse side 50, together with the web 134 forms a type of cover or roof for the recess or forms the cutout 140 and thus for the corresponding receptacle 126 and 128, respectively, in order to ensure a corresponding covering at the top.

In particular, the lid 104 is supported on the element 148 .

The respective first receptacle 126 or second receptacle 128 is formed by means of the cutout or recess 140 , the guide track 138 and the electrical contact device 130 .

Electrical contact device 130 is located in the area of wall 144.

The device body 12 has opposing recesses or free spaces 360a, 360b. The free spaces 360a, 360b are each a part of the recess or cutout 140. The free spaces 360a, 360b lie in front of the respective associated receptacle; the recess or space 360a is in front of and associated with the first receptacle 126; the recess or free space 360b lies in front of the second receptacle 128.

The respective recess or the respective free space 360a, 360b is delimited at the bottom (relative to the vertical axis 58) by the base 142. In particular, the bottom 142 is flat in the area of the recess or free space 360a, 360b.

The recess or free space 360a, 360b is open towards the first transverse side 48 at the front. The recess or the free space 360a, 360b is open laterally outwards (in the case of the recess or the free space 360a towards the first longitudinal side 38, in the case of the recess or the free space 360b towards the second longitudinal side 40). Opposite to this, the cutout or free space 360a, 360b is delimited by the central block 132 in each case. The recess or free space 360a, 360b is bounded to the rear by the associated first receptacle 126 or by the associated second receptacle 128. The recess or free space 360a, 360b in the suction device 10 is delimited at the top by the web 134.

In order to bring the respective battery unit 122 or 124 into the associated receptacle 126, 128, it is pushed through the corresponding recess or free space 360a or 360b.

Since the recess or free space 360a, 360b is open towards the first transverse side 48, pushing through the recess or free space 360a, 360b from the first transverse side 48 takes place.

If the respective battery unit 122 or 124 is positioned in the corresponding receptacle 126 or 128, then the corresponding battery unit 122 or 124 protrudes with a partial area 362 into the corresponding recess or free space 360a or 360b (compare, for example, Figure 1) .

The respective battery unit 122 or 124 has a housing 364 . The housing 364 has a first longitudinal side 366 and an opposite second longitudinal side 368. It also has a front side 370. A charge status display 160 is arranged on the front side 370.

On the first longitudinal side 366 and on the second longitudinal side 368, a handle device 372 is arranged on the housing 364 of the respective battery unit 122, 124. The handle device 372 comprises, in particular, a plurality of webs arranged in parallel.

When the respective battery unit 122, 124 is positioned on the device body 12, the corresponding webs are aligned in particular transversely and preferably perpendicularly to the base 142.

In particular, the first battery pack 122 and the second battery pack 124 are in terms of their housing 364 (that is, in terms of their outer shape) mirror symmetrical. The corresponding handle device 372 is seated on the first longitudinal side 366 and on the second longitudinal side 368, so that the respective battery unit 122 or 124 is suitable for both receptacles 126, 128.

When the corresponding battery unit 122 or 124 is seated on the associated receptacle 126 or 128, the handle device 372 is positioned in the recess or in the free space 360a, 360b. In particular, it points outwards to the corresponding first longitudinal side 38 or to the second longitudinal side 40.

An operator can grasp the appropriate battery pack 122, 124 by the exterior handle assembly 372 and pull the appropriate battery pack 122, 124 out of the appropriate receptacle 126, 128, respectively.

The cutout or free space 360a, 360b is located upstream of the respective receptacle 126 or 128 in relation to the insertion direction 150.

The receptacles 126, 128 and the associated recesses or spaces 360a, 360b are designed such that when the battery unit 122, 124 is positioned on the corresponding receptacle 126, 128, the respective battery unit 122, 124 does not protrude beyond the first transverse side 48 and does not protrudes beyond the first long side 38 or the second long side 40 .

A battery unit 122 or 124 can be inserted into the associated receptacle 126 or 128 in an insertion direction 150 and in particular can be pushed in. The direction opposite to the insertion direction 150 is an exit direction. The corresponding battery unit 122 or 124 can be removed from the corresponding receptacle 126 or 128 in this direction.

The direction of insertion 150 is defined by the guideway 138 and by its arrangement on the floor 142 . The direction of insertion 150 is transverse to the first transverse side 48. The corresponding battery unit 122 or 124 can be pushed into the respective receptacle 126 or 128 via the first transverse side 48.

The direction of insertion 150 is transverse to the vertical axis 58.

In the suction device 10 according to the first exemplary embodiment, the insertion direction 150 is perpendicular to the vertical axis 58. It can also be at an acute angle to the vertical axis (compare FIGS. 10 to 12).

Insertion direction 150 is transverse and, in particular, perpendicular to wheel axle 36.

The insertion direction 150 is at least approximately parallel to the standing plane 56. "Approximately" means that there is at most a small acute angle, for example less than 15°, between the insertion direction 150 and the standing plane 56.

The same then also applies to the direction of discharge as the opposite direction to the direction of insertion 150. This direction of discharge is indicated by reference numeral 152 in FIG.

In one embodiment, the suction port 106 is disposed with a central axis 154 at an acute angle relative to the elevation axis 58 . Accordingly, it is arranged at an acute angle 156 (FIG. 3) to the standing plane 56. In particular, the suction port 106 is arranged such that the central axis 154 meets an outer side of the central block 132 at least approximately perpendicularly. Accordingly, the magnitude of the acute angle 156 is equal or approximately equal to the angle 136.

An insertion direction 158 for a sleeve of a suction hose (compare FIG. 3) lies parallel to the central axis 154. The insertion direction is corresponding 158 at an acute angle to the vertical axis 58 or at an acute angle to the suction port 106.

In the exemplary embodiment shown, the direction of insertion 158 for a suction hose to the suction connection 106 is at an acute angle, the amount of which corresponds to the acute angle 156, to the direction of insertion 150 for the respective battery unit 122, 124 in the respective receptacle 126 or 128.

The charge status display 160 is assigned to the battery device 120 . The charge status display 160 shows the charge status of the respective battery unit 122 or 124 .

In the exemplary embodiment shown, the charge status display 160 is arranged on the respective battery unit 122 or 124 .

In principle, however, it is also possible for a charge status display 160 to be arranged on the suction head 16 and for the first receptacle 126 and the second receptacle 128 to be assigned their own charge status display 160 . If a battery unit 122, 124 is seated in the corresponding receptacle 126 or 128, the charge state can be optically detected via the charge status display 160 on the respective battery unit 122 or 124, or on the respective receptacle 126 or 128.

Due to the arrangement of the receptacle 126 or 128 on the suction head 16, the charge status display 160 can be read by an operator from the first transverse side 48.

The charge status indicator 160 is then arranged accordingly on the respective battery unit 122, 124 on a transverse side, which when the battery unit 122 or 124 is fixed is located on the corresponding receptacle 126 or 128 on the transverse side 48 next to the central block 132. An operator who is in front of the first transverse side 48 can insert or remove the respective battery unit 122, 124 from the associated receptacle 126, 128 from this position via the first transverse side.

From this position, he can fix a suction hose with a corresponding sleeve on the suction connection 106 .

From this position, the operator has access to the operator panel 112 via the first lateral side 48 and can carry out corresponding operating procedures.

The state of charge displays 160 of the battery device 120 are in his field of vision 162 when he is in front of the first transverse side 48 (compare FIG. 4).

If a suction hose is fixed to the suction port 106, an operator can also move toward him by pulling on the suction hose.

The receptacles 126, 128 are open towards the first transverse side 48 in order to enable the respective battery unit 122, 124 to be inserted in the insertion direction 150 from the first transverse side 48.

In the exemplary embodiment 10 shown, the receptacles 126, 128 are open towards the respective longitudinal side 38, 40.

The first receptacle 126 and the second receptacle 128 are arranged symmetrically and are mirror-symmetrical to the center plane 116 on the suction head 16 . They are at the same height in relation to the vertical axis 58 or in relation to the standing level 56.

The first receptacle 126 and the second receptacle 128, and thereby also the respective battery units 122, 124 if they are fixed to the receptacle 126 or 128, are spaced transversely to the center plane 116. At least a partial area (cf. FIG. 5) of the fan device 72 is arranged on the suction head 16 between the first receptacle 126 and the second receptacle 128 . The first receptacle 126 and the second receptacle 128 and thus also the first battery unit 122 and the second battery unit 124 are spaced apart from one another in a direction transverse to the center plane 116 . This transverse direction is perpendicular to the vertical axis 58 and, in particular, at least approximately parallel to the standing plane 56.

Furthermore, the control device 96 is positioned on the suction head 16 with at least a partial area between the first receptacle 126 and the second receptacle 128 (compare FIG. 4).

The control panel 112 and suction port 146 is located between the first receptacle 126 and the second receptacle 128 on the first transverse side 48.

The first receptacle 126 and the second receptacle 128 are positioned laterally to the fan device 72 on the suction head 16 in relation to this transverse direction.

The first receptacle 126 and the second receptacle 128 each have an underside 164 in relation to the vertical axis 58 . This underside 164 is essentially formed by the floor 142 .

The receptacles 126, 128 also have an upper side 166 in relation to the vertical axis 58. The upper side 166 and the lower side 164 are spaced apart from one another in the height axis 58 .

The upper side 166 is essentially formed by an underside of the web 134 and by an underside of the element 148 .

The underside of the respective receptacle 126, 128 is at the same height as the suction connection 106 in relation to the vertical axis 58 (compare FIG. 2). The suction port 106 has a vertical extension. The underside 164 lies within this height extent.

The top 166 of the respective receptacle 126, 128 is at the same height as the control panel 112 (FIG. 2) with respect to the height axis 58. The control panel 112 also has an extension in a height direction, and the top 166 is within that height relative to the height axis 58 .

This then also applies to corresponding battery units 122, 124 when they are positioned on the respective receptacle 126, 128. A bottom of each battery unit 122, 124 is level with the suction port 106. An upper side of each battery unit 122, 124 is level with the operation panel 112.

The control panel 112 can be assigned a center 168 which lies on the center plane 116 .

Form a first line from this center 168 to a geometric center of the first receptacle 126, a second line from this center to a corresponding (geometric center) of the second receptacle 128, and a third line from this center of the second receptacle 128 to the center 126 together a straight line or, as in the case of the suction device 10, a triangle 170. This triangle 170 is an equilateral triangle due to the symmetrical arrangement of the first receptacle 126 and the second receptacle 128 with respect to the central plane 116 (FIG. 2).

If the respective battery units 122, 124 are arranged on the receptacles 126, 128, and the battery units 122, 124 are assigned a center, which can be a center of mass or a geometric center, then corresponding lines to the center 168 also form a triangle. A first line from a center of the first well 126 to a center 172 of the suction port 106, a second line from that center 172 to a center of the second well 128, and a third line from the center of the second well 128 to the center of the first well 126 together also form a triangle 176, or a straight line.

This triangle 176 is also equilateral.

The center 172 of the suction connection 106 lies on the center plane 116. It essentially corresponds to an intersection of the center axis 154 with the first transverse side 62 of the suction head.

When the battery packs 122, 124 are inserted into the respective receptacles 126, 128, then form a first line between the center of the first battery pack 122 and the center 122, a second line between the center 122 and the center of the second battery pack 124, and a third line between the centers of the second battery pack 124 and the first battery pack 122 together also a triangle.

FIG. 2 shows the embodiment in which triangle 170 and triangle 176 are present.

In principle, it is also possible for the triangle 170 or the triangle 176 to degenerate into a straight line as the suction connection 106 moves closer to the operating panel 112 .

When the first battery unit 122 and the second battery unit 124 are inserted, their common center of mass lies on the center plane 116. The center of mass 118 lies on the center plane 116, or at a small distance (in particular less than 10 cm and preferably less than 5 cm) from the Center plane 116. The battery device 120 then causes no tilting moment on the device body 12. In principle, in order to prevent a tilting moment when only one electrically effective battery unit is used, it can be provided that the other battery unit 122 forms a counterweight, which is a "battery dummy" so to speak, and which ensures that the center of gravity of the Battery device on the center plane 116 is located.

A carrying handle 178, in particular in the form of a bow, is arranged on the cover 104. In one embodiment, the carrying handle 178 is arranged so that it does not protrude beyond a lid surface of the lid 104 . The cover surface 104 can be used in particular as a storage area.

The carrying handle 178 is located on the center plane 116.

When the cover 104 is fixed, the device body 12 can be held and in particular lifted via the carrying handle 178 .

Due to the symmetrical arrangement, in which in particular the center of mass 118 of the device body including the battery device 120 lies on the central plane 116, no tilting moment occurs.

The carrying handle 178 has in particular a web 180 for holding, which has an extension in a direction which runs between the first transverse side 48 and the second transverse side 50 . Furthermore, the web 180 lies on the center plane 116.

This means that there is no tilting moment when lifting. For this purpose, for example, the device body 12 can be lifted out of the receptacle 28 or inserted into it in a simple manner.

In order to “position” the center of gravity 118 on the center plane 116 or to “position” it at a small distance from it, it is provided that the fan device 72 lies on the center plane 116 . Furthermore, the filter cleaning device 88 is located on the center plane. If corresponding battery units 122, 124 are inserted in the receptacles 126, 128, then a line contour 182 (Figure 4), which lines between the center of the first battery unit 122, a center 184 of the filter cleaning device 88, between the center 184 and the center of the second battery unit 124 and between the centers of the first battery unit 122 and the second battery unit 124 the shape of a triangle and in particular an equilateral triangle.

The center 184 is a geometric center or center of mass of the filter cleaning device 88.

The triangular apex of this triangular line contour 182 lies on the median plane 116.

A projection of this triangle onto the standing plane 56 is also a triangle. A projection of the center of mass 118 onto the standing plane 56 lies within this projected triangle.

This results in high stability with minimized tilting moments.

In one exemplary embodiment, the fan device 72 lies at least in part, and preferably for the most part, within this triangle 182 (compare FIG. 5).

A first part 186 and a second part 188 adjoining it can be assigned to the device body 12 . The first lateral side 48 is arranged on the first part 186 . The second lateral side 50 is arranged on the second part 188 . The first part 186 and the second part 188 "share" the first longitudinal side 38 and the second longitudinal side 40.

The receptacles 126, 128 are arranged on the first part 186. Accordingly, the battery device 120 is arranged on the first part 186 . The filter cleaning device 88 is arranged on the second part 188 .

When positioned on the suction head 16, the battery device 120 with the first battery unit 122 and the second battery unit 124 is closer to the first transverse side 48 than to the second transverse side 50.

The filter cleaning device 88 on the second part 188 is closer to the second transverse side 50 than to the first transverse side 48.

In one exemplary embodiment, the fan device 72 is arranged on the first part 186 .

The fan device is closer to the first transverse side 48 than to the second transverse side 50, or is located centrally between the first transverse side 48 and the second transverse side 50.

Geometrically, when the implement body 12 is positioned in the receptacle 28 , the wheel assembly 30 is disposed on the second portion 188 and the roller assembly 42 is disposed on the first portion 186 .

The wheel axis 36 is perpendicular to the center plane 116.

This also prevents a tilting moment about an imaginary tilting axis, which is oriented perpendicularly to the center plane 116 .

Overall, the result is a stable installation of the suction device 10 on a base 29, even if the relatively heavy battery device 120 is fixed to the suction head 16 and thus to the device body 12.

Provision can be made for the filter cleaning device 88 to be arranged at the same height as the receptacles 126, 128 in relation to the vertical axis 58, in particular also when comparing the corresponding centers 184 and centers (geometric centers) of the first shot 126 and the second shot 128.

In particular, the centers of the battery units 122, 124 are then at the same level as the center 184.

It is also possible for the center 184 of the filter cleaning device 88 to have a height spacing in the height axis 58 in relation to the centers of the first battery unit 122, 124 (and thus in relation to a center of the battery device 120).

In one embodiment, the impeller 74 of the blower device 72 is positioned lower than the first receptacle 126 and the second receptacle 128 in relation to the vertical axis 58, i.e. in relation to the vertical axis 58 the impeller 74 is below the respective floor 142 (see Figure 3).

This results in an optimized use of space.

In the case of the suction device 10, the suction connection 106 and the operating panel 112 are arranged on the first transverse side 48 for simplified operability by an operator.

The state of charge indicators 160 can be read by an operator from this first transverse side 48 .

The battery units 122, 124 can be inserted or removed via this first transverse side 48.

The battery device 120 is arranged mirror-symmetrically to the center plane 116 . The center of mass 118 of the device body 12 lies at least approximately on the center plane 116. Due to the symmetrical arrangement of the battery device 120 with respect to the center plane 116, this center of mass is not significantly shifted out of the center plane, even when the battery units 122, 124 are fixed to the receptacles 126, 128.

This results in no tilting moment, or at most a very small tilting moment in relation to a fictitious tilting axis, which is perpendicular to the vertical axis 58 and thereby in the center plane 116 .

This results in a high level of stability for the suction device 10.

Further, the body 12 can be lifted or lowered or held without substantial lifting.

The triangular line contour 182 results in an optimized use of space with minimization of a tilting moment. A tilting moment in an imaginary tilting axis perpendicular to the center plane 116 is also minimized.

For an operator, this results in simple operability. The vacuum cleaner 10 can also be made compact with a filter cleaning device 88 .

The recesses or free spaces 360a, 360b assigned to the receptacles 126, 128 allow the battery units 122, 124 to be positioned flush or set back with respect to the first transverse side 58 and the longitudinal sides 38, 40 on the device body 12. The battery units 122, 124 do not protrude beyond an envelope of the device body 12; In particular, they do not protrude beyond the first transverse side 48 and beyond the longitudinal sides 38, 40.

Furthermore, when the battery unit 122, 124 is positioned on the respective receptacle 126 or 128, the corresponding battery unit 122, 124 can be removed from the Pull the device body 12 out of the respective receptacle 126, 128. In principle, it is possible for the operability via the first transverse side 48 to also take place in an embodiment of a suction device which does not have a filter cleaning device 88 .

In principle, it is possible that the suction device 10 can only be operated via the battery device 120 . Alternatively, it is possible that the suction device 10 can also be operated using mains electricity.

Provision is made in particular for the rechargeable battery units 122, 124 to be charged outside of the suction device 10 and for the battery units 122, 124 to be removable accordingly.

It can also be provided that although the battery units 122, 124 can be removed, a charger is integrated into the suction device 10.

A second exemplary embodiment of a suction device according to the invention, which is shown in FIGS. 6 to 9 and is denoted by 190, has essentially the same design as the suction device 10. Reference numerals are used for the same elements as for the suction device 10. The suction device 190 differs from the suction device 10 in the design of receptacles for the battery device 120.

The suction device 190 comprises a suction material container 14 and a suction head 192. A first receptacle 194 and a second receptacle 196 for respective battery units 122, 124 are arranged on the suction head 192.

The suction head 192 is basically the same as the suction head 16, apart from the receptacles 194, 196.

The receptacles 194, 196 differ from the receptacles 126, 128 in that they each have a closed chamber 198. In front of the chamber 198 of the respective receptacle 126, 128, a recess or free space is formed on the suction head 192, corresponding to the recesses or free spaces 360a, 360b in the suction device 10.

Such a chamber 198 comprises a wall 200 which has an interior space 202 . The chamber 198 is cuboid.

Chamber 198 has an opening 204 to a transverse side corresponding to first transverse side 48 . Opening 204 is an insertion opening for a corresponding battery unit 122 or 124 into interior space 202.

A movable cover 206 is seated on the chamber 198 and serves to close the chamber 198 .

The cover 206 has a basic position 208 (FIGS. 6, 7), in which it closes the chamber 198 at the insertion opening 204.

For example, a spring device 210 is provided, which holds the cover 206 in this basic position 208 or brings it into this basic position (see below).

The interior 202 is closed in the basic position 208 of the cover 206 and is therefore protected from dust.

The electrical contact device 130 is arranged in the interior space 202 . This is then also protected against dust.

In particular, it is provided that the cover 206 is only in its basic position 208 when no battery unit 122 or 124 is inserted in the respective receptacle 194, 196. A battery unit 122 or 124 can be inserted into the respective receptacles 194, 196 (compare FIGS. 8 and 9, in which corresponding intermediate states are shown for the battery unit 124).

The insertion takes place in the direction of insertion corresponding to the direction of insertion 150 (FIG. 7). The lid 206 is arranged as a flap on an upper side 212 of the chamber 198 (compare FIG. 9). When the corresponding battery unit 122 or 124 is pushed in at the insertion opening 204 , the cover 206 is pivoted and thereby pivoted into the interior space 202 .

A corresponding pivot axis 214 of a pivot joint, via which the cover 206 is mounted, is oriented transversely to the corresponding vertical axis 58 and in particular perpendicularly thereto. The pivot axis 214 is in particular oriented parallel to a standing plane corresponding to the standing plane 56 of the suction device 190 .

Pivoting from the basic position 208 is only possible for the cover 206 in the direction of the interior 202 (compare FIG. 9).

The force required to pivot the cover 206 into the interior space 202 about the pivot axis 214 is applied by an operator when the corresponding battery unit 122 or 124 is displaced.

An intermediate state is shown in FIG. 8, in which the battery unit 122 is already inserted.

In this state, the corresponding cover 206 is located in the interior space 202 above the battery unit 122.

Also shown in FIG. 8 is the state where the second battery pack 124 has just been inserted and pushed in. As can be seen from FIG. 9, this causes the cover 206 to swing up into the interior space 202 and the second battery unit 124 can then be pushed in until a fixing position is reached. In the fixing position, there is then again electrical contact with the electrical contact device 130 .

When a battery unit 122, 124 is positioned on the corresponding receptacle 194 or 196, it protrudes into the corresponding recess or space in front of the respective receptacle 194, 196 in a manner similar to that described with reference to the suction device 10.

A handle device 372 on the respective battery unit 122, 124 is then freely accessible for an operator, so that it is easier to pull it out. The mode of operation is basically the same as that described above with reference to the suction device 10 .

If the corresponding battery unit 122, 124 is removed again, then due to the spring loading of the spring device 210 the cover 206 pivots back into its basic position 208 and the chamber 198 is sealed dust-tight.

The receptacles 194, 196 are arranged with respect to the other elements of the suction device 10 (control panel 112, suction connection 106, blower device 72, filter cleaning device 88) etc. as described above with reference to the suction device 10 with the receptacles 126, 128.

Another exemplary embodiment of a suction device 216 according to the invention, which is shown in FIGS. 10 to 12, with partial representations being shown in FIGS Suction device 10 are used the same reference numerals.

A suction head 218 is seated on a corresponding suction material container 14. The suction head 218 has a center block 220 . On the center block 220 sits a control panel 112 with a rotary knob 114, and sits a suction port 106.

The middle block 220 has an I-shape and, like the middle block 132 of the suction device 10, is inclined on a corresponding first transverse side 48 to the wall 20 of the suction material container.

(The center block 220 does not have a ridge 134 compared to the center block 132.)

A first receptacle 222 and a second receptacle 224 are arranged on the suction head 218 to the side of the central block 220 . As described above with reference to the suction device 10, the arrangement is mirror-symmetrical to a geometric center plane of the device body of the suction device 216 corresponding to the center plane 116.

The first receptacle 222 and the second receptacle 224 each include a chamber 226 which is closed except for an insertion opening 228 .

A pivotably arranged cover 230 is seated on the chamber 226 at the insertion opening 228. The cover 230 is designed in particular as a flap. It is pivotably mounted on the chamber 226 in such a way that it can be pivoted into an interior space 234 (compare FIG. 12) of the chamber 226 . In particular, it is mounted on an upper side 236 of the chamber 226 .

It has a basic position 232 in which it closes the chamber 226 at the insertion opening 228 (compare FIG. 10).

In the basic position 232 of the cover 230, the chamber 226 is completely closed and is therefore protected in particular from dust. an electric one Contact device 130, which is arranged on chamber 226, is also protected from dust as a result.

The basic position 232 of the cover 230 is in particular such that there is then no battery unit 122 or 124 in the respective receptacle 222, 224 (compare FIG. 10 for the second receptacle 224).

In particular, provision is made for the cover 230 to be assigned a spring device which ensures that the cover 230 is held in the basic position 232 and automatically returns to the basic position 232 (when a corresponding battery unit 122 or 124 is removed).

The chambers 226 of the receptacles 222, 224 each have a longitudinal axis 238 (FIG. 11).

The chamber 226 extends along this longitudinal axis 238. A longitudinal wall 240 of the corresponding chamber 226 is oriented substantially parallel to this longitudinal axis 238. FIG.

The chamber 226 is oriented at an acute angle 242 to the elevation axis 56 (compare Figure 11). The acute angle 242 is, for example, in the range between 30° and 60° and in particular in the range between 40° and 50°. It is preferably around 45°.

Correspondingly, the longitudinal axis 238 lies at an acute angle 244 to a plane 246 which is parallel to the standing plane 56 .

In particular, the acute angle 242 and the acute angle 244 combine to form a 90° angle.

The acute angle 242 is accordingly preferably in the range between

30° and 60° and in particular in the range between 40° and 50°. In a specific embodiment, it is approximately 45°.

The corresponding battery unit 122 or 124 can be pushed into the corresponding chamber 226 of the receptacle 222 or 224 at the corresponding receptacle 222 or 224 with an insertion direction 248 at the insertion opening 228 . The direction of insertion 248 is parallel to the longitudinal axis 238 of the respective chamber 226.

Correspondingly, the insertion direction 248 lies at the acute angle 242 to the height axis 58, and lies at the acute angle 244 to the plane 246.

An opposite direction 250 for removing the corresponding battery unit 122, 124 from the receptacle 222, 224 is antiparallel to the insertion direction 248.

The suction device 216 has a direction of displacement 252 (compare FIG. 10) on a base 29 via the driving device 24. The direction of displacement 252 can lie at a variable angle to the wheel axis 36 due to the castors 44, 46.

The first receptacle 222 and the second receptacle 224 are also oriented at an acute angle, which essentially corresponds to the acute angle 244, to the displacement direction 252 due to the oblique arrangement relative to the vertical axis 58.

The direction of insertion 248 lies at an acute angle (corresponding to the acute angle 244) to the direction of displacement 252.

The insertion direction 248 lies at an acute angle corresponding to the acute angle 244 to the wheel axle 36. The oblique arrangement of the chambers 226 of the receptacles 222, 224 prevents or reduces displacement and, in particular, movement of the suction device 216 when a battery unit is inserted. To a certain extent, this prevents the suction device from “moving away” when a battery unit is inserted into the corresponding receptacle 222, 224.

In the basic position 232, the cover 230 is closed (see FIG. 10 at the second receptacle 224 or FIG. 11).

If a battery unit such as the second battery unit 124 is used, then the cover 230 is thereby folded into the interior space 234 (FIG. 12). The corresponding battery unit can then be brought into the interior space 234 until there is electrical contact with the electrical contact device 130 and a corresponding fixing position is reached.

A displacement of the suction device 216 as a whole on the base 29 is thereby largely prevented.

When the corresponding battery unit is inserted, it protrudes beyond the chamber 226 so that in particular a charge status display 160 can be seen by an operator from the first transverse side 48 .

A recess or free space 255 (compare, for example, FIG. 10) is formed on the suction head 218 in front of the respective receptacle 222, 224. This recess or free space 255 basically has the same function as the recess or free space 360a, 360b as described above.

The recess or clearance 255 has no upper limit due to the I-shaped configuration of the center block 220 .

When the corresponding battery unit 122, 124 is seated in the respective chamber 226, a portion of this protrudes into the recess or the Clearance 255 in such a way that a handle means 372 is accessible to an operator.

In particular, it is provided that the corresponding battery unit 122 or 124, when it is inserted in the chamber 226, does not protrude beyond an envelope of the suction head 118 and does not protrude beyond the first transverse side and also does not protrude beyond a corresponding longitudinal side.

The corresponding battery unit 122 , 124 is also inserted or removed from the first transverse side 48 .

An inserted first battery unit 122 is shown in FIG.

When a corresponding battery unit 122 or 124 is removed from the chamber 226, the corresponding cover 230 folds back into the basic position 232 due to its spring loading and the chamber 226 is also closed at the insertion opening 228.

In the case of the suction device 216, the insertion openings 228 of the receptacles 222, 224 are at the same level as the operating panel 112 (compare FIG. 10). In relation to the height axis 58, the suction connection 106 is lower than the insertion openings 228.

Because of the oblique arrangement of the chambers 226, it is possible for a rear region 254 (compare FIG. 12) of the chambers 226 to be at the same height as the suction connection 106 in relation to the vertical axis 58.

Otherwise, the geometric design of the suction head 216 is the same as that described above with reference to the suction head 16 . In particular, the receptacles 222, 224 are symmetrical to a geometric center plane of the suction head 218. The control panel 112 and the suction connection 106 are correspondingly located on this center plane.

Furthermore, the geometric arrangement in relation to other components of the suction device 10, such as the fan device 72 and the filter device 88, is as described above.

A fourth exemplary embodiment of a suction device according to the invention, which is shown in FIG. 13 and is denoted by 256, comprises a device body 258. The device body 258 can be movably supported on a subsurface via a driving device 260.

The device body 258 has a suction material container 262 . A suction connection 264 is arranged on the suction material container 262, to which a suction hose or a suction pipe can be fixed via a corresponding sleeve.

An intermediate ring 266 is releasably seated on the suction material container 262. The intermediate ring 266 is releasably fixed to the suction material container 262, in particular by a locking flap device 268.

A suction head 270 is in turn releasably seated on the intermediate ring 266 .

An operating panel 274 is located on the suction head 270. A fan device is arranged on the suction head 270 and, if necessary, a filter cleaning device.

The intermediate ring 266 between the suction head 270 and the suction material container 262 has a receiving device 276 for a battery device. In particular, the receiving device 276 has a plurality of receptacles 278 , each receptacle being able to receive a battery unit 280 . In the embodiment shown, the receptacle 276 has three receptacles. Accordingly, three battery units 280 can be accommodated.

The device body 258 has a first transverse side 282. Opposite to this, it has a second transverse side 284. Between the first transverse side 282 and the second transverse side 284 are a first longitudinal side 286 and an opposite second longitudinal side 288.

The operation panel 274 is arranged on the first transverse side 282 . The suction connection 284 is also arranged on the first transverse side 282 .

The receiving device 276 has an insertion opening 290 which is arranged on the first transverse side 282 .

The device body 258 has a geometric center plane 292 which is oriented transversely to the first transverse side 282 and transversely to the second transverse side 284 and which lies centrally between the first longitudinal side 286 and the second longitudinal side 288 .

The control panel 274 and suction port 284 are located on the midplane 292.

The receiving device 276 is also located on the center plane 292 and is embodied symmetrically and in particular mirror-symmetrically with respect to the center plane 292 .

A middle recording 278 lies on the middle plane 292.

The intermediate ring 266 is essentially a holder for the battery device. It is arranged in such a way that it does not impede filter cleaning by the filter cleaning device. The device body 258 has a vertical axis 294. The receptacle 276 is located between the suction port 264 and the control panel 274 with respect to the vertical axis 294. Accordingly, battery units inserted on the receptacle 276 are positioned between the suction port 264 and the control panel 274 with respect to the vertical axis 294.

When a filter cleaning device is provided, it is arranged on the suction head 270 and is therefore above the receiving device 276 or the battery units in relation to the vertical axis 294 when they are positioned on the receiving device 276 .

A center of mass of the device body 158 lies on the center plane 292.

A center of mass of the battery units when they are inserted into the receiving device 276 also lies on the center plane 292.

In particular, a fan device and also a filter cleaning device, if present, are located on the center plane 292.

Battery units 280 can be brought into the respective receptacles 278 in an insertion direction 296 . In an opposite direction to this, battery units 280 can be removed from the receiving device 276 .

The insertion or removal takes place from the first transverse side 282 .

The operating panel 274 can be operated from the first lateral side 282 . The suction port 264 is accessible from the first transverse side 282 .

A charge status display, which is located on the respective battery units 280 or on the receptacles 278, can be read from the first transverse side 282. The respective outer edges of the receiving device 276 or of inserted battery units 280, which lie adjacent to the first longitudinal side 286 and the second transverse side 288, and from which a line leads to a center of the filter cleaning device, form an equilateral triangle, with the center on the median plane 292 lies.

A projection of this triangle 298 onto the standing plane of the suction device 256 is such that a projection of the center of mass onto this standing plane lies within this triangle.

A fifth exemplary embodiment of a suction device according to the invention, which is shown in sectional views in FIGS. 14 and 15 and is denoted by 302 there, is basically of the same design as the suction device 10. The same reference numbers are used for the same elements.

The suction device 302 differs from the suction device 10 in the design of the filter cleaning device; a filter cleaning device 304 is provided, which has a plurality of external air valves and in particular has two external air valves, namely a first external air valve 306a and a second external air valve 306b.

A plurality of extraneous air valves 306 are provided in order to correspondingly enable cleaning over a large filter area; Due to the plurality of external air valves 306, external air can be applied over a larger area.

The suction device 302 has a center plane corresponding to the center plane 116 in the case of the suction device 10 .

A center of mass of the filter cleaning device 304 lies on this

Center plane 116. The external air valves 306a, 306b are mirror- arranged symmetrically to the center plane 116, so that the center of mass of the filter cleaning device 304 as a whole lies on the center plane 116 (compare FIGS. 13 and 14).

Otherwise, the suction device 302 is designed like the suction device 10 and functions in the same manner.

In a sixth exemplary embodiment of a suction device, which is shown in Figure 16 in a perspective view and is labeled 320, it is provided, as in the case of suction device 10, that a center of gravity of the device body lies at least approximately on the corresponding geometric center plane, so that the filter cleaning device is attached to the The device body is arranged such that a center of mass of the filter cleaning device lies at least approximately on the central plane, and that the battery device is arranged on the device body in such a way that a center of mass of the battery device lies on the central plane.

In the case of the suction device 320, battery units 322, 324 are positioned on the respective receptacles 326, 328. The receptacles 326, 328 are designed in such a way that the battery units 322 or 324 can be brought into or removed from the respective receptacle 326 or 328 via an upper side 330 of a suction head 332. An insertion direction 334 and an extraction direction 336 as the opposite direction is at least approximately parallel to a vertical axis 338 of the suction device 320.

In the case of the suction device 320, as in the case of the suction device 302, a symmetrical arrangement of weight-relevant components with respect to a corresponding central plane is provided. This greatly reduces the risk of tipping.

The suction device 320 differs from the suction device 10 in that the battery units 322, 324 cannot be inserted or removed via a corresponding first transverse side 340, but via the upper side 330, which is transverse to the first transverse side 340. The top 330 is transverse and in particular perpendicular to the vertical axis 338.

Reference List

Suction Device (First Embodiment)

device body

suction container

suction head

floor

wall

inner space

driving device

frame

recording

document

wheel setup

right wheel

left wheel

wheel axle

First long side

Second long side

roller setup

First castor

Second castor

First cross page

Second cross page

recording

locking flap device

stand level

elevation axis

suction head body

First transverse side of suction head

Second suction head transverse side

First suction head long side Second suction head long side

recording room

fan device

Wheel

axis of rotation

blower motor

Wave

filter device

filter holder

recording room

filter cleaning device

external air valve device

external air valve

clean side

control device

flow direction

dirt side

top

lid

suction port

Pipe

Support

control panel

knob

midplane

center of mass

battery setup

First battery unit

Second battery unit

First shot

Second shot

Electrical contact device

center block web

angle

guideway

recess

floor

wall

element

insertion direction

execution direction

central axis

acute angle

insertion direction

charge level indicator

field of view

bottom

top

center

triangle

center

triangle

carrying handle

web

line contour

center

First part

Second part

Suction Device (Second Embodiment)

suction head

First shot

Second shot

chamber wall

inner space

opening

lid

initial position

spring device

top

pivot axis

Suction Device (Third Embodiment)

suction head

center block

First shot

Second shot

chamber

insertion opening

lid

initial position

inner space

top

longitudinal axis

longitudinal wall

acute angle

level

insertion direction

opposite direction

shift direction

The backstage area

recess or space

Suction Device (Fourth Embodiment)

device body

driving device

suction container suction port

intermediate ring

locking flap device

suction head

locking flap device

control panel

recording facility

recording

battery unit

First cross page

Second cross page

First long side

Second long side

insertion opening

midplane

elevation axis

insertion direction

triangle

Suction Device (Fifth Embodiment)

filter cleaning device

External air valve a First external air valve b Second external air valve

Suction Device (Sixth Embodiment)

battery unit

recording

top

suction head

insertion direction

execution direction

elevation axis First transverse sidea Free space b Free space Housing section First long side Second long side Front handle device

Claims

- 69 -

Claims Suction device, comprising a device body (12; 258), a fan device (72) for generating a suction flow, a battery device (120) with at least one battery unit (122, 124; 280) for providing electrical energy, at least one receptacle (126, 128 ; 194, 196; 222, 224; 278) for a battery unit (122, 124; 280) arranged on the apparatus body (12; 258), and having at least one of the following: an operation panel (112; 274) which is arranged on a transverse side (48; 282) of the device body (12; 258), a suction connection (106; 264) which is arranged on a transverse side (48; 282) of the device body (12; 258), characterized by at least one of The following: the at least one receptacle (126, 128; 194, 196; 222, 224; 278) on the device body (12; 258) is arranged with respect to the transverse side (48; 282) in such a way that the at least one receptacle (126, 128; 194, 196; 222, 224; 278) associated battery unit (122, 124; 280) of the transverse side (48; 282) can be brought into the at least one receptacle (126, 128; 194, 196; 222, 224; 278); the at least one receptacle (126, 128; 194, 196; 222, 224; 278) is arranged on the device body (12; 258) with respect to the transverse side (48; 282) in such a way that a charge status display (160) can be seen from the transverse side (48 ; 282) can be read by an operator, the charge status display (160) being arranged on the battery unit (122, 124; 280) or on the at least one receptacle (126, 128; 194, 196; 222, 224; 278). is. - 70 - Suction device according to Claim 1, characterized by at least one of the following: a battery unit (122, 124; 280) can be detached in an insertion direction (150; 248; 296) on the associated at least one receptacle (126, 128; 194, 196 ; 222, 224; 278) positionable and in a direction opposite to the direction of insertion (150; 248; 296) of the at least one receptacle (126, 128; 194, 196; 222, 224;

278) removable; the at least one receptacle (126, 128; 194, 196; 222, 224; 278) comprises a fixing device for the associated battery unit (122, 124; 280); an electrical contact device (130) is assigned to the at least one receptacle (126, 128; 194, 196; 222, 224; 278); the at least one receptacle (126, 128; 194, 196; 222, 224; 278) comprises a guide track (138) for the associated battery unit (122, 124; 280); a battery unit (122, 124; 280) can be accommodated by the at least one receptacle (126, 128; 194, 196; 222, 224; 278), which is a counterweight for an electrically active battery unit (122, 124; 280) and in terms of weight corresponds to the electrically operative battery pack (122, 124; 280); the control panel (112; 274) and the suction port (106; 264) are located on the same transverse side (48; 282). - 71 - Suction device according to claim 1 or 2, characterized in that the at least one receptacle (126, 128; 194, 196; 222, 224; 278) to the transverse side (48; 282) and / or to a longitudinal side to which the transverse side (48; 282) is oriented transversely is open. Suction device according to Claim 1 or 2, characterized in that the at least one receptacle (194, 196; 222, 224) comprises a chamber (198; 226) which is closed, in particular except for an insertion opening (204; 228). Suction device according to Claim 4, characterized in that a movable cover (206; 230) for the insertion opening (204; 228) is arranged on the chamber (198; 226). Suction device according to one of the preceding claims, characterized by at least one of the following: a battery unit (122, 124; 280) positioned on the at least one receptacle (126, 128; 194, 196; 222, 224; 278) does not protrude beyond the transverse side ( 48;282) beyond; a battery unit (122, 124; 280) positioned on the at least one receptacle (126, 128; 194, 196; 222, 224; 278) is flush with the transverse side (48; 282) or opposite the transverse side (48;

282) positioned recessed on the device body (12; 258); a battery unit (122, 124; 280) positioned on the at least one receptacle (126, 128; 194, 196; 222, 224; 278) does not protrude beyond a longitudinal side (38; 40; 256; 258) of the device body (12;

258), wherein the long side (38; 40; 256; 258) is oriented transversely to the short side (48; 282); - 72 - a battery unit (122, 124; 280) positioned on the at least one receptacle (126, 128; 194, 196; 222, 224; 278) is flush with a longitudinal side (38; 40; 256; 258) or is recessed opposite the long side (38; 40; 256; 258), the long side (38; 40; 256; 258) being oriented transversely to the short side (48; 282). Suction device according to one of the preceding claims, characterized in that the device body (12; 258) has a recess or free space (360a; 360b) which is associated with the at least one receptacle (126; 128), the free space or free space ( 360a; 360b) is open to the transverse side (48; 282), and wherein the at least one receptacle (126; 128) attaches to the associated free space or recess (360a; 360b) in a direction transverse to the transverse side (48; 282) and in particular in an insertion direction (150) for the battery unit (122; 124) into the associated receptacle (126; 128). Suction device according to Claim 7, characterized by at least one of the following: the free space or the recess (360a; 360b) lies in front of the associated at least one receptacle (126; 128); the free space or recess (360a; 360b) is bounded downwards by a base (142) and in particular by a flat base (142) on the device body (12; 258); the space or recess (360a; 360b) is bounded on one side by a center block (132); - 73 - the space or recess (360a; 360b) is open to a second side, which is a longitudinal side (38; 40) of the device body (12; 258), the longitudinal side (38; 40) being transverse to the transverse side (48) oriented; a battery unit (122; 124) positioned on the at least one receptacle (126; 128) having a portion (362) seated in the space or recess (360a; 360b); a battery unit (122; 124) is provided with a handle device (370), wherein when the battery unit (122; 124) is positioned on the at least one receptacle (126; 128), the handle device (370) can be held in the free space or recess (360a; 360b ) is positioned and is accessible to an operator, in particular via the clearance or recess (360a; 360b); the handle device (370) is arranged on a longitudinal side (366; 368) or an upper side of the battery unit (122; 124), which when the battery unit (122; 124) is positioned on the at least one receptacle (126; 128) transversely to the transverse side ( 48) of the device body (12; 258) and in particular faces outwards; A handle device (370) is arranged on a first longitudinal side (366) and on an opposite second longitudinal side (368) of the battery unit (122; 124), and in particular the battery unit (122; 124) is mirror-symmetrical in terms of its external shape. Suction device according to one of the preceding claims, characterized by at least one first receptacle (126; 194; 222; 278) and one second receptacle (128; 196; 224; 278). - 74 - Suction device according to Claim 9, characterized by at least one of the following: the first receptacle (126; 194; 222; 278) and the second receptacle (128; 196; 224; 278) are symmetrical and in particular mirror-symmetrical to a geometric center plane ( 116; 292) of the device body (12; 258) are arranged on the device body (12; 258), or are arranged on the device body (258) at the median plane (292), the median plane (116; 292) being transverse to the transverse side ( 48;282) is oriented; the device body (12; 258) has a height axis (58; 294) which is oriented perpendicular to a standing plane (56) of the suction device and the first receptacle (126; 194; 222; 278) and the second receptacle (128; 196 ; 224; 278) are arranged on the device body (12; 258) at an equal height with respect to the height axis (58; 294); the first receptacle (126; 194; 222; 278) and the second receptacle (128; 196; 224; 278) are spaced apart in a direction transverse to a geometric median plane (116; 292) of the device body (12; 258); the fan device (72) is arranged on the device body (12) at least with a partial area between the first receptacle (126; 194; 222) and the second receptacle (128; 196; 224); a controller (96) is located between the first receptacle and the second receptacle on the tool body (12). Suction device according to claim 9 or 10, characterized in that the control panel (112) is arranged between the first seat (126; 194; 222) and the second seat (128; 196; 224) on the device body. Suction device according to one of Claims 9 to 11, characterized in that the suction connection (106) is arranged between the first receptacle (126; 194; 222) and the second receptacle (128; 196; 224) on the device body (12). Suction device according to one of Claims 9 to 12, characterized in that the first receptacle (126; 194; 222) and the second receptacle (128; 196; 224) are arranged on a suction head (16) of the device body (12), in particular with at least one of the following: the control panel (112) is located on the suction head (16); the suction connection (106) is arranged on the suction head (16) or on a suction material container (14). Suction device according to one of the preceding claims, characterized in that a central block (132; 220) is arranged on the device body (12), on which the operating panel (112) is positioned, and that on both sides of the central block (132; 220) on the Device body (12) each having a receptacle (126, 128; 194, 196; 222, 224) is arranged. Suction device according to Claim 14, characterized by at least one of the following: the suction connection (106) is seated on the central block (132; 220); the center block (132; 220) has an outer surface forming part of the lateral side (48; 282); the center block (132) includes a web (134) positioned over the receptacles (126, 128; 194, 196) relative to a height axis (58) of the tool body (12); the center block is I-shaped or T-shaped; the center block (132; 220) is seated on a suction head (16) of the device body (12); a control device (96) is arranged on the central block (132; 220); the center block (132; 220) is mirror-symmetrical to a geometric center plane (116) of the device body (12); a movable cover (104) for a receiving space (86) of the device body (12), in which a filter cleaning device (88) for a filter device (82) and/or the filter device (82) are arranged, is on the central block (132; 220 ) supported; a carrying handle (178) is arranged on the movable cover (104); the at least one receptacle (126, 128; 194, 196; 222, 224) extends into an area below the cover (104); - 77 - the at least one receptacle (126, 128; 194, 196; 222, 224) is positioned on the device body (12) at least in a partial area to the side of the blower device (72). Suction device according to one of Claims 1 to 9, characterized in that at least one receptacle (278) is arranged between the suction connection (264) and the control panel (274) relative to a vertical axis (294) of the device body (258). Suction device according to Claim 16, characterized in that the control panel (274) is arranged on a suction head (270) of the device body (258) and the suction connection (264) is arranged on a suction material container (262) of the device body (258). Suction device according to Claim 17, characterized in that the at least one receptacle (280) is arranged on an intermediate ring (266) which is arranged between the suction material container (262) and the suction head (270), in particular with at least one of the following: the intermediate ring (266) is detachable from the suction container (262); the intermediate ring (266) is detachable from the suction head (270); A receiving space is arranged on the intermediate ring (266), on which a plurality of receptacles (278) are seated, the receiving space being designed in particular to accommodate a plurality of battery units. - 78 - Suction device according to one of the preceding claims, characterized in that on a geometric center plane (116; 292) of the device body (12; 258) which lies between a first receptacle (126; 196; 222) and a second receptacle (128; 198; 224), a filter cleaning device (88) for a filter device (82) and/or the filter device (82) are arranged. Suction device according to one of the preceding claims, characterized in that the suction device has a standing plane (56) and that the device body (12; 258) has a height axis (58; 294) which is oriented perpendicular to the standing plane (56), and wherein the at least one receptacle (126, 128; 194, 196; 222, 224) is assigned an insertion direction (150; 248; 296) for a corresponding battery unit (122; 124), with at least one of the following: the at least one receptacle ( 126, 128; 194, 196; 222, 224) is arranged such that the direction of insertion (150; 248; 296) is oriented transversely to the vertical axis (58; 294); the at least one receptacle (126, 128; 194, 196; 222, 224) is arranged such that the insertion direction (150; 248; 296) is parallel or at an acute angle (244) to the standing plane (56); the direction of insertion (150; 248; 296) is oriented transversely to the transverse side (48; 282); the insertion direction (150; 248; 296) is oriented transversely and in particular perpendicularly to a wheel axis (36) of a wheel device (30), the wheel device (30) being arranged on the device body (12); - 79 - the insertion direction (150; 248; 296) is oriented parallel to a geometric center plane (116; 292) of the device body (12; 258); the direction of insertion (150; 248; 296) is parallel or at an acute angle to a direction (158) of insertion of a suction hose into the suction connection (106). Suction device according to Claim 20, characterized in that the insertion direction (150; 296) is perpendicular to the vertical axis (58; 294) or parallel to the standing plane (56). Suction device according to Claim 20, characterized in that an acute angle (242) of the insertion direction (248) to the standing plane (56) is in the range between 30° and 60° and in particular in the range between 40° and 50°. Suction device according to one of the preceding claims, characterized in that the at least one receptacle (222; 224) has an insertion direction (248) for a battery unit (122, 124) which is at an acute angle (244) to a displacement direction (252) of the Suction device is located on a substrate (29). Suction device according to Claim 23, characterized in that the acute angle (244) lies in the range between 30° and 60° and in particular lies in the range between 40° and 50°. Suction device according to Claim 23 or 24, characterized in that the device body (12) is supported on a base (29) via a wheel device (30) with a wheel axle (36), and in that the direction of displacement (252) is perpendicular to the wheel axle (36 ) is oriented. - 80 - Suction device according to one of the preceding claims, characterized in that the transverse side with the operating panel (112; 274) and/or with the suction connection (106; 264) is a first transverse side (48; 282) and the device body (12; 258) has a second transverse side (50; 284) which is spaced apart from the first transverse side (48; 282), and that a wheel device (30) is arranged on the device body (12; 258) with at least one of the following: the wheel device (30) is positioned closer to the second transverse side (50; 284) than to the first transverse side (48; 282) on the implement body (12; 258); a wheel (32; 34) of the wheel means (30) is arranged in front of a longitudinal side (38; 40; 286; 288) of the implement body (12; 258), the longitudinal side (38; 40; 286; 288) being between the first transverse side (48; 282) and the second transverse side (50; 284); a line connecting a receptacle (126, 128; 194, 196; 222, 224; 278) and a wheel (32; 34), the receptacle (126, 128; 194, 196; 222, 224; 278) and the wheel (32; 34) associated with a longitudinal side (38; 40; 286; 288) lies at an acute angle to a vertical axis (58; 294) of the device body (12; 258). Suction device according to one of the preceding claims, characterized by at least one of the following: an underside of the at least one receptacle (126, 128; 194, 196; 222, 224) is at the same height as the suction port (106) or below the suction port (106); - 81 - An upper side of the at least one receptacle (126, 128; 194, 196; 222, 224) is at the same height as the control panel (112) or above the control panel (112 ).

Suction device according to one of the preceding claims, characterized in that a contour of a line between the first receptacle (126) and the second receptacle (128), a line between the second receptacle (128) and the suction connection (106), and a line between the suction connection (106) and the first receptacle (126) is a straight line or a triangle (174) and in particular an equilateral triangle (174).

Suction device according to one of the preceding claims, characterized in that a contour course of a line between the first receptacle (126) and the second receptacle (128), a line between the second receptacle (128) and the operating panel (112), and a line between of the control panel (112) and the first housing (126) is a straight line or a triangle (170) and in particular an equilateral triangle (170).

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